Prosper Data Breach Affects Over 17 Million Exposing Social Security Numbers

Prosper Funding LLC, a financial lending company has experienced a cybersecurity incident. The company discovered suspicious unauthorized activity within its internal network. An investigation was launched and it was quickly determined that personally identifiable information (PII) was compromised.

Prosper has confirmed that sensitive personal information belonging to borrowers was obtained in the cyberattack. Exposed information includes names and Social Security numbers and other applicant and customer data such as contact information and financial account information.

Prosper published Cybersecurity Incident Customer FAQs on its website. The company also began emailing impacted consumers on Sept. 17, 2025. The communication to borrowers states that the investigation is still in early stages and will continue to be ongoing. The breach is considered severe, due to the fact it puts consumers at risk for identity theft and financial fraud.

So far, the cybersecurity incident has impacted millions of U.S. residents, including at least 1,161,581 residents in Texas, 249,848 in Washington and 1,008 in Iowa. The company has disclosed the cybersecurity event to the Attorney General's offices in California, Iowa, Massachusetts, Texas and Washington, with additional disclosures expected.

Prosper Funding's response

In response to the breach, Prosper Funding LLC acted quickly to stop the cyberattack and notified law enforcement. The company will continue to work to identify impacted applicants, borrowers and investors and will make required state and federal disclosures. Prosper has stated that it will offer free credit monitoring to affected individuals after determining exactly what data was impacted.

If you believe your personal information may have been compromised in this breach:

• Carefully review any notice or communication you receive from Prosper.
• Monitor financial accounts and credit reports for signs of identity theft.
• Consider placing fraud alerts or credit freezes with the major credit bureaus.
• Be cautious of unsolicited emails or phone calls requesting personal information.

Prosper has also set up a dedicated response line at 833-918-9464, available from 8 a.m. to 5 p.m. CT Monday through Friday, for individuals seeking more information or assistance.

For more information about the company and its services, visit the Prosper website.